Electrotherapeutic apparatus



' April 6,1926. 1,579,513

J. CAMERON ELECTROTHERAPEUTIC `APPARATUS Filed May 4. 1925 3sheets-sheet 1 April 6 19.26.

J. CAMERON Filed May 4, 1925 5 Sheets-Sheet 2 zo l '2o.

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.J. CAMERON ELECTROTHERAPEUTIC APPARATUS 3 Sheets-Sheet 3 Filed May 4,1925 .www

Jfe @01276/1017 Patented' Apr. e. 192e.

1 UNITED STATES PATENT OFFICE.

-JOSEPH CAMERON, OF MINNEAPOLIS, l

I ELECTBOTHEBAPEUQIC AIPABATUS.

To all whom it may concern l Be it known that I, JOSEPH CAMERON, acitizen of. the United States, residing at Minneapolis, in the countyofHennepin and State of Minnesota, have invented certain wouldl otherwisebe raised by the treatment.

The apparatus is held suspended over 'that part of the patients body tobe treated and includes a fan for producing a blast of cool air, aportion of which is constantly delivered onto` the patients wriststhrough wristlets applied thereto, and under the` action of a rotarypulsator or vibrator, the remaining air from the fanlis delivered 1n arapid succession of air pulsations or vibra 80 tions into a heatingchamber. In this heating chamber is a heatin i, element, preferably 'inthe form of a coi the temperature of which is controlled by av rheostat,as shown, applied on the top of the casing.

Below the heating chamber is a light chamber that contains light bulbsand a reflector having a skeleton dome. These hot air pulsations orvibrations are delivered from the heating chamber into the li ht chamberthrough the skeleton dome, w ich is preferably made up of verticallyspaced concentrically located reflecting lenses of upwardly decreasingdiameter. the light chamber are preferably spaced around an axiallylocated focusing lens that is axially aligned with afocusing tubethrough which latter the heat wave and light rays are delivered to thepoint or surface on the patients body to be treated. The deliverythrough the focusing lens and focusing tube of the light rays will beconstant, but the heat waves will be delivered with a sort of pulsatingor vibrating action Ydue to the action of the rotary pulsator orvibrator.

and I do hereby,

which The light bulbs in .55 In the accompanying drawings, whichilappuoanon mea nay 4, was.I sei-m nt. eases.

lustrate the invention, like characters in? i dicate like partsthroughoutfthe 'several views..

- Referring tothe drawings:

Fig. 1 is an elevation -of the apparatus with some parts broken awayandv sectioned;

Fig. 2 is' a viewv of the apparatus principally in central verticalsection, on an en'- larged scale;

Fig. 3 is a transverse section taken on the lline 3-3 of Fig. 2; A

Fig. 4 is a fragmentary detail view in central vertical section taken onthe line 3-3 of Fig. 1; and

,Fig. 5 is a wiring diagram.

As one means of supporting tus, I provide a tubular standard 6 mountedon a truck 7 and having a\ tubular horizontal arm 8. A carriage 9 ismounted to travel on track rails 10 formed on the sides of the arm 8 anda grooved wheel loosely the appara,

journaled on said carriage and located within the tubular arm 8. A cable12, within the arm'8, runs over the 'grooved wheel 11, and a-grooved,wheel 13 journaled in the tubular standard 6. One end of this cable 12extends downward into the tubularstandard 6 'and has secured thereto aplurality of counterweightsl, and its otherfend'extends downward througha longitudinal slot 16 in the under sideof the arm 8 and is providedwith a plurality of branch cables 17 from which the apparatus issuspended.

The apparatus includes a vertically disposed cylindrical casing 18 theupper end of which is open and the lower end of which lis closed withthe exception of a focusing tube 19. This casing 18 is held suspendedfrom the arm 8 by the cable 12 which is attached thereto by the branchcables 417.

These branch cables 'fare secured to the cas-y ing 18 atcircumferentially spaced points by eye-equipped lugs 20.

Within the casing 18 is an upper fan housing 21, an intermediate heatingchamber 22, and a lower light chamber 23 from the bottom of which thefocusing tube 19 leads. In the top of the fan housing 21 is a largeaxially located air intake eye 24 and in t e conduits 27 having nipples28, for a purpose` which will presently appear.

. the armature shaft 31 and driven therefrom is a rotary pulsator orvibrator 33 located-in the fanhousing l21 through the bottom o ii whichsaid armature shalt projects. This pulsator or vibrator 33 (hereinafterreferred therebetween.

to as a pulsator) is in the form of a flat disc located just under thebottom oi the fan housing 21 vfor rotation in a plane parallel theretoand having two circumterentially spaced ports 34 arranged to beintermittently brought into registration with the ports 25 leading fromthe tan housing 21 under the rotation ci said pulsator by the motor 29.

Mounted within the heating chamber 22, nea-r the top thereof, is aheating element 35 in the form of a coil, and interposed between thepulsator 33 and the heating element 35 is a heat deiecting hood 36. A

cluster oi' electric li ht bulbs 374 is mounted.

in sockets'38 circum erentially spaced around the focusing tube 19 andsecured in the bottom of thelight chamber 23. Axially located within thelight chamber 23 above the ocusin tube 19, is a focusing lens 39 havingon 1ts frame Ll0 a pair of collars a1 slidably mounted on a pair elupright diametrically opposite posts i2 and secure'dthereto in di erentvertical adjustments by set screws 43.

Located over the light bulbs 37 and focusing lens 39 is a conicallyformed reector 45 having a large axial opening over which is located askeleton dome comprising a plurality o f concentric rings i3 and a topplate 47 vertically spaced to leave air passages 48 i6-a7 aord apartition which separate the heatin chamber 22 from the light chamber23. or controlling the temperature of the heating element 35,- there isprovided a rheostat 49 mounted in the top of the casing 18 but spacedfrom thesides thereof to leave an air intake passagewa 50..

rlhe temperature of t e heating chamber 22 is' registered by athermometer 51 mounted in a casing 52 secured to the outside or thecasing 18, and the upper end of which casing 52 is connected to the fanhousin 21 by a conduitv 53, andthe lower. end of wich is connected tothe heating chamber 22 by a conduit 54. Obviously air is free tocirculate around the thermometer 51 throu h the casin 52 and conduits 53and 54; acess may had to the interior of the casing '18, between theelectric motor 29 and rheostat 49, throu ha hand hole normally closed bya cover p ate 55. To keep a patientls blood rl"his redector dei and domeheretic by the apparatus, cool air, from the fan 32,.

is applied to his wrists, as previously stated,

by means of wristlets 56 having nipples 57 connected by hose sections58' to the nipples 28. Obviously, air entering the pockets 26 from thefan 32 will pass through the conduits 27, nipples 28, hose sections 58,.and nipples 57 to the patients wrists. The wristlets 56 are held on apatients wrist by means of spring-acting clamps 59.

Referring now to the wiring diagram shown in Fig. 5, the numeral 60indicates.

lead wires connected by a socket 61 to a heyecguip ed lamp socket 62,attached to a duplex lamp cord 63 leading from any suitable source oisuppl The electric motor 29 `is connected to t e leadwlres 6() by a`pair of branch wires 64 Ain one of which is interposed a switch 65. rlheheating element- 35 is connected to the lead wires 60 by a pair ofbranch wires 66 in .one of which is interposed the rheost-at 49 and inthe other of which is interposed a switch 67. The light bulbs 37 areconnected parallel to the lead wires 60 by al pair ot branch wires 68 inone of'which is interposed a switch 69.

During the treatment of a patient by the apparatus, he lies on a couch70 over whichsaid apparatus is suspended. rlhe counterweights 15 holdthe apparatus where positioned at dierent elevations, and permit thesame to be raised or lowered,and the carriage 9 truck 20 permittheapparatus to' move horizontall into diil'erent positions over apatiente bo y.

Preferably, the concentric rings- 46 and the oever plate 47 havereecting surfaces withinthe light chamber 23, and the back of thereflector 'et within the heating chamber 22 is covered with a suitableinsulating material 71. rlhe entire casing 18 is encased by a nishingshell 72 between which and said casing is an insulating material 73.'

What l claim is:

ilo 1. A casing having a fan housing, a heating chamber and a lightchamber, said itanv housing having a discharge port leading to theheating chamber and said light chamber having a focusing opening, incombination with a ian mounted in the fan housing, of

a heating element mounted in the heating chamber,I and a light bulbmounted in the light chamber.. f

2. The structure defined in claim 1 in having hose connections leading`from the fan housing. i

5. The Astructure ydefined in claim 1 in further combinationA with alens .at the' ifo-v further combination with a pairvof clampactingwristlets having hose connections leading from the fan housing.

6. The structure defined in claim 1 in further combination with arotating disk with sectorial incisions to generate pulsations o't'nircurrent between the fan and the heating element and light bulb.

7. The structure defined/ in claim'l in 'further combination with arotating disk with sectorial incisions to generate pulsations of aircurrent mounted in'the heating chamber between the fan and the heatingelement. and a reflector for the light bulb.

The structure dened in claim 1 in further combination With a rotatingdisk with sectorial incisions to generate pulsations of air currentmounted in the heating chamber between the fan and the heating element,a refiector for the light bulb, and a pair of wristlets having hoseconnection leading from the fan housing.

The structure defined in claim 1 in further combination With a rotatingdisk with sectorial incisions to generate pulsations of air currentmounted in the heating chamber between the -fan and the heating element,a refiector for the light bulb, said housing having a pair of airpockets, and a pair of wristlets having hose connections leading fromthe air pockets.

10. The combination with an upright casing having an upper fan housing,an intermediate heating chamber and a lower light chamber, said fanhousing having a discharge port leading to the heating chamber and saidlight chamber having a focusing opening, of a fan mounted in the fanhousing, a heating element mounted inthe heating chamber, a cluster oflight bulbs surrounding the focusing opening, a reflector in the lightchamber for the light bulbs, a ro-` tating disk with sectorialincisionslto generate pulsations of air current mounted in the heatingchamber between the fan and the heating element, an electric motor fordriving the fan and said disk, and a pair of wristlets having hoseconnections leading from the fan housing.

11. The structure defined in claim 10 in further combination with anoverhead carriage, and means for suspending the casing from thecarriage.4

12. The structure defined in claim 10 in further combination with anoverhead carriage, and means for suspending the casing` from thecarriage and vertically adjusting the same.

18. The structure defined in claim 10 iny

